// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/child_process_launcher_helper_posix.h"

#include "base/command_line.h"
#include "base/metrics/field_trial.h"
#include "content/browser/file_descriptor_info_impl.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_descriptors.h"
#include "mojo/edk/embedder/platform_handle.h"

namespace content {
namespace internal {

    std::unique_ptr<FileDescriptorInfo> CreateDefaultPosixFilesToMap(
        const base::CommandLine& command_line,
        int child_process_id,
        const mojo::edk::PlatformHandle& mojo_client_handle)
    {
        std::unique_ptr<FileDescriptorInfo> files_to_register(
            FileDescriptorInfoImpl::Create());

        int field_trial_handle = base::FieldTrialList::GetFieldTrialHandle();
        if (field_trial_handle != base::kInvalidPlatformFile)
            files_to_register->Share(kFieldTrialDescriptor, field_trial_handle);

        DCHECK(mojo_client_handle.is_valid());
        files_to_register->Share(kMojoIPCChannel, mojo_client_handle.handle);

        // TODO(jcivelli): remove this "if defined" by making
        // GetAdditionalMappedFilesForChildProcess a no op on Mac.
#if !defined(OS_MACOSX)
        GetContentClient()->browser()->GetAdditionalMappedFilesForChildProcess(
            command_line, child_process_id, files_to_register.get());
#endif

        return files_to_register;
    }

} // namespace internal
} // namespace content
